This was quiet an emotional read and better than I expected but I had my problems with it.
First, the fantasy aspect often disturbed the flow and emotional impact of the plot. When I started to feel inside an intense and serious scene, the description of whimsically looking animals (with flowers and leaves as fur) and floating blades really crushed my immersion. While the themes and setting felt very mature to me, the fantasy elements felt rather childish. Towards the end of the book fmc suddenly can see ghosts bc it easily gives her information she needs and moved the plot forward...
So in my opinion, fantasy wasn't very necessary but sometimes an easy and quick way to get characters more powerful. (And maybe to sell the book not only in historical fiction but also in fantasy section that is more popular atm). The prose was also uninteresting, so no plus points for that from me. I'm also disappointed that we put so much value and depth into the main villain Terran, explored his past, but very little of his present. We got so little of his dialogue directly from him and not told or read from somewhere and he didn't even get last words before he died. (Yes I want the cringe prolonged scene where someone is bleeding from the mouth in the arms of another and tells one last truth/secret XD) His death was too sudden, too quick.
Also, the way the author dodged writing a long impactful poem she hyped up throughout the book is funny, but disappointing XD